Ments



(No Model.) I

E. P. BOSDEVEX.

TRUGK FOR RAILWAY CARS.

No. 424,089. v PatentedMar. 25,1890.

WITNESSES INVENTOR UNITED STATES PATENT QFFICE;

EDMOND F. BOSDEVEX, OF NEW" YORK, N. Y., ASSIGNOR, BY MESNE ASSIGN- MENTS, TO JOHN WV. EMERSON, OF SAME PLACE.

TRUCK FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 424,089, dated March 25, 1890.

Application filed July 26, 1887. Serial No. 245,390. (No model.)

To all whom, it may concern: at H,) adapted to oscillate upon a bearing Be it known that I, EDMOND F. BOSDEVEX, (represented at I in the drawings) securely a citizen of the United States, residing-in the fastened to the center beam or stay of the city of New York, in the county and State truck. It is obvious, however, that the pivot- 55 of New York, have invented a new and usepin may be secured to the main metallic bracful Improvement in Gar-Trucks for Railwaying forming the frame of the truck when low- Cars, of which the following, taken in conered to the proper point for that purpose, the nection with the drawings furnished, is a principal object of the pivot-pin I being to specification. serve as a fulcrum to cause the ends of the 60 My invention relates to car-trucks of a lever to move in opposite directions when character adapted to permit the wheels thereacted upon by a rod, (shown at I in the drawof to follow any curve of a track without unings.) The action of the truck-levers is sedue side contact or strain to any portion of cured by the connecting-rod L, which is pivthe wheel or flange thereof; and it consists otally cmnected to the body or frame-work of 6 5 I5 of a series of connecting-rods uniting the the car. In the instance illustrated it is sepedestal-boxes of a truck to the body or frame cured to a flange bolted to the lower or base of the car in such manner as to assist the slidpart of the car, (indicated at G.) Of course it ing of the journal hearings or boxes therein will be readily understood that the connectto an extent allowing the latter to conform to ing-rod may be attached to the frame or base 70 the position required for the axle with its of the car beneath. The chief object of this wheels to maintain their proper angle with connection with the body or frame of the car the track; and it further consists in the comis to insure the proper movement or slide of bination of the means hereinafter described, the boxes when rounding a curve to an exwhereby all parts act in unison. tent preventing the truck from unduly turn- 75 Referring to the drawings, Figure 1 repreing upon its center. Consequently it will apsents a side elevation of a truck containing pear manifest to those skilled in the art that my improvement, and-Fig. 2 represents a top connections may be made at different points View of the same. upon the body or frame of the car and pro- In the drawingswhich I have prepared to duce the desired result. 80 3orepresent the principles of my invention, A It should be understood that the levers and represents the base-of the car, and B B the connections already described and shown in pedestal-blocks for supporting the axle- Fig. 1 of the drawings are to be applied to boxes 0. the truck, body of the car, and journal-boxes D D represent the ends of the axles in poat the opposite side of that shown in the fig- 8 sition; E E, wheels; F, metallic braces servures referred to, and consequently to all of ing as supports to the pedestals and forming the trucks upon the same car. the truck-frame. The form of the leversmay be modified in G, H, K, and L represent a series of conform, as well as their arrangement and mannecting rods and levers pivotally uniting the ner of connection, without departing from 0 4o axle-boxes with each other and with the truckthe spirit of my invention.

frame and car above, as will be hereinafter The operation of my improved truck is as more fully explained. follows: When rounding a curve somewhat In the instance shown the axle-boxes G are shorter than the length of the car, the latter, somewhat narrower in width than the space by reason of the fact that it cannot conform 5 they are intended to occupy in the pedestals. to the curve, maintains a position different The object of this extra space is to afiord from that assumed by the wheels and axles, sufficient room for the longitudinal sliding which are expected to follow the curve of the of the boxes, as required when rounding track. Consequently the connecting-rods L curves. Suitable connecting-rods (shown at L", located at opposite sides of the truck, mo G and K) are hinged to the sliding axle-boxes, uniting the car with the levers, &c., serve to uniting with aoentrally-pivoted lever, (shown act upon the lever H, and the latter upon G and K, so as to cause the axle-boxes to slide in the pedestals in the direction to place the axles at the proper radius across the track on a curve in accordance with the circle thereof. The boxes 011 the inner circle of the curve are drawn nearer together, of course, than those at the outer, which are allowed to expand apart in proportion to the requirements to form the proper radius across the curve. The connecting-rods serve as brace-supports as well as guides for maintaining the proper position of the trucks under all circumstances.

The object of my improvement is to simplify the construction of car-trucks of the class more especially adapted to conform more or less to the varied curves of a railway-track and lessen the cost of construction, and at the same time secure additional advantages by way of avoiding undue friction of parts, curved socket-bearings, and similar features, which require great care in defining as well as extra skill in constructing. Another advantage in myimprovement consists in its ready adaptation and attachmentto car-trucks of the ordinary elass'already in existence. I do not wish to be un derstood, however, as claiming, broadly, acar- I truck the wheels of which are more or less variable at times in their relations to each other when rounding curves, as such have existed prior to the date of my invention; but I am not aware that trucks have been constructed prior to the date of my invention in which the axle-boxes were capable of moving or sliding horizontally within the pedestals supporting them. Neither am I aware that such boxes have been connected together in a manner similar to that hereinbefore set ,t'orth, so as to be operated in a manner similar to that already described by me herein.

Having thus set forth my invention, What I claim as new, and desire to secure by Letters Patent of the United States of America, is

1. A truck for railway-cars, consisting of a main frame. pedestals, sliding boxes, wheels and axles, and connecting-rods uniting the said boxes with a vertically-arranged centrally-pivoted lever at or near its opposite ends, and a connectingrod uniting said pivoted lever with the body of the car or frame thereof, substantially as described, and for the purpose set forth.

2. The combination, with a truck for railway-cars, provided with pedestals and boxes adapted to slide horizontally in the latter, axles, and wheels, of connecting-rods and a centrally pivoted vertical lever located about central at the side of the truck, to which said connecting-rods are pivotallyconnectcd at or near its opposite ends, and a connecting-rod uniting said pivoted lever with the body of the car, all operating substantially as described, and for the purpose set forth.

E. F. BOSDEVEX.

Witnesses:

JOHN DANE, Jr., J osEPH M. CRANE. 

